Exterior deadbolt for vacant property
The InvinciBolt Lock
When a house sits empty, it still holds things worth taking, such as copper pipe, appliances and fixtures, and no one is there to notice someone at the door. The InvinciBolt Lock mounts on the outside of the entry door, slides a metal bolt into the frame and locks with a key from outside.
For vacant buildings only. It cannot be unlocked from inside. Read the safety rules.
Vacant homes by the numbers
Sources: ATTOM, “National Vacancy Rate Doesn’t Budge in Third Quarter” (August 27, 2026); Adjusters International on the HO-3 vacancy provision; U.S. Bureau of Justice Statistics, “Victimization During Household Burglary” (2010), Table 5.
How it works
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1
Install it on the entry door
Take out the existing deadbolt, fit the InvinciBolt Lock to the exterior face and use the drill bit from the kit, following the install video.
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2
Lock it from the outside
Slide the bolt into the frame and turn the key. Nothing on the inside of the door can open it, so make sure the building is empty first.
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3
Remove it before anyone moves in
When the property is ready to be lived in, take the InvinciBolt Lock off, put the standard deadbolt back, and keep the lock for your next vacant property.
Product video
A two-minute introduction to the InvinciBolt Lock and a demonstration on a door.
Watch the install
The video walks through every step, from removing the existing deadbolt to locking the InvinciBolt Lock in place. Watch it all the way through before you start.
Pressing play loads the video from YouTube.
Who uses it
Landlords
Between tenants, while a unit is cleaned, repaired and listed.
Rehabbers and flippers
While the house is empty, the tools are on site and the new materials are in.
Property preservation
Securing vacant and bank-owned homes between inspections.
Estates and long vacancies
Homes that will sit empty while they are settled, sold or waiting on repairs.
Guides for empty properties
What it covers
The InvinciBolt Lock locks one entry door. Windows, door glass and the building’s other doors need their own protection.
Insurers’ checklists for vacant property also call for regular visits, lights on timers and locked windows. The Vacant Property Checklist brings that advice together.
Vacant buildings only
The InvinciBolt Lock cannot be unlocked or removed from inside. When it is locked, that door cannot be used as an exit, even in a fire.
- Use it only on a vacant building or unit. Check the whole building and confirm no person or pet is inside before you lock it.
- Unlock it before anyone goes in, through any door.
- Never lock it while anyone lives, stays, works or visits inside.
- Never use it on a shared entrance or any door someone else needs to get out.
- Never use it to lock out a tenant or lawful occupant.
- Remove it and reinstall a standard deadbolt before anyone moves in.
Safe use and property access steps · Full warning and warranty
Questions
What is the InvinciBolt Lock?
An exterior-mounted metal lock that takes the place of an entry door's deadbolt while a property sits empty. It is locked and unlocked with a key from outside only. Protect Your Vacant Property gives the full overview.
What doors does it fit?
A single, side-hinged, swinging exterior entry door in sound condition with a solid frame. It is not for sliding doors, double doors, windows or gates.
What comes in the kit?
How much does it cost?
$140.00 per lock, plus shipping and any sales tax, both shown before you place your order.
How long does it take to install?
About 20 minutes. The install video covers each step.
Can it be opened from inside?
No. Once it is locked, no one inside can unlock or remove it. That is why it is only for buildings with no one in them.
Does it leave marks on the door frame?
Yes. It leaves holes in the frame: one for the bolt and screw holes for the strike plate. When the lock comes off, fill them and touch up the paint, as you would after moving any strike plate.
Can a determined thief still get in?
Yes. No lock stops someone with power tools and enough time, and windows and door glass stay open to attack. Our guide to securing a vacant property's door covers the rest of the plan.
Can I use it again on another property?
Yes. It is made to be taken off and installed again, so one lock can be moved from one vacant property to the next.
Is there a warranty?
Yes. The lock has a limited lifetime warranty for as long as the original purchaser owns it. The keyed locking component and keys are covered for one year from delivery. The Limited Lifetime Warranty and Disclaimer page explains what is covered and how to make a claim.
Who do I contact with questions?
Use the form on our Support page, or email [email protected].
Order the InvinciBolt Lock
Go to the order page